Tektronix Courseware
MSP430 Labs
Learning Digital Oscilloscope Operation Using MSP430
Launchpad and TBS1000B-Edu Oscilloscope
March 3, 2014
MSP430MinMaxMeas -- Overview
OBJECTIVES
After performing this lab exercise, learner will be able to:
• Program MSP430 Launchpad board to generate signals (like Sine,
Square wave or PWM) and use it as a DUT for your experiment
• Capture and display the signal from given Device Under Test
(DUT)
• Measure MAXIMUM and MINIMUM amplitude of the capture signal
using inbuilt functions of the scope
EQUIPMENT
To carry out this experiment, you will need:
• TBS1KB - Digital Oscilloscope from Tektronix
• MSP430 Launchpad board
• Voltage probe (provided with oscilloscope) / BNC cables
• Breadboard and connecting wires
• Simple circuit components – Resistor / capacitors
THEORY
• Maximum Value: Value of highest amplitude point in the acquired
signal, measured in volts.
• Minimum Value: Value of lowest amplitude point in the acquired
signal, measured in volts.
MSP430MinMaxMeas -- Procedures
Step 1
DUT / SOURCE SETUP
• Ensure you have Energia IDE (software to program the MSP430
Launchpad boards) installed on your computer.
• Connect the MSP430 Launchpad board to PC using USB cable
• Program it with relevant code
• Take the output from mentioned probing point(s)
Step 2
MEASUREMENT / SCOPE SETUP
• Power ON the oscilloscope
• Connect the Channel 1 probe of the oscilloscope to Vout-1
• Acquire the signal(s) from circuit on oscilloscope
Step 3
• Do the Autoset on the scope to efficiently capture and view the
signal
• If AUTOSET feature is not enabled, then manually set the
horizontal and vertical scale, and trigger condition to view 3-4 cycles
of waveform without any clipping.
Step 4
• From the measurement menu, configure MINIMUM and MAXIMUM
measurement on acquired channel
Step 5
• Read the measured value and verify against the expected
MSP430RMSMeas -- Overview
OBJECTIVES
After performing this lab exercise, learner will be able to:
• Program MSP430 Launchpad board to generate signals (like Sine,
Square wave or PWM) and use it as a DUT for your experiment
• Capture and display the signal from given Device Under Test
(DUT)
• Measure RMS and Cycle RMS amplitude of the capture signal
using inbuilt functions of the scope
EQUIPMENT
To carry out this experiment, you will need:
• TBS1KB - Digital Oscilloscope from Tektronix
• MSP430 Launchpad board
• Voltage probe (provided with oscilloscope) / BNC cables
• Breadboard and connecting wires
• Simple circuit components – Resistor / capacitors
THEORY
• RMS value is a statistical measure of the magnitude of a varying
quantity. RMS value of a time varying current / voltage signal is an
equivalent DC signal that delivers same average power as delivered
by the time varying signal.
• RMS value of a sine wave = Peak Voltage / √2
MSP430RMSMeas -- Procedures
Step 1
DUT / SOURCE SETUP
• Ensure you have Energia IDE (software to program the MSP430
Launchpad boards) installed on your computer.
• Connect the MSP430 Launchpad board to PC using USB cable
• Program it with relevant code
• Take the output from mentioned probing point(s)
Step 2
M​EASUREMENT / SCOPE SETUP
• Power ON the oscilloscope
• Connect the Channel 1 probe of the oscilloscope to Vout-1
• Acquire the signal(s) from circuit on oscilloscope
Step 3
• Do the Autoset on the scope to efficiently capture and view the
signal
• If AUTOSET feature is not enabled, then manually set the
horizontal and vertical scale, and trigger condition to view 3-4
cycles of waveform without any clipping.
Step 4
• From the measurement menu, configure RMS and Cycle RMS
measurement on acquired channel
Step 5
• Read the measured value and verify against the expected
MSP430AvgPkPkMeas -- Overview
OBJECTIVES
After performing this lab exercise, learner will be able to:
• Program MSP430 Launchpad board to generate signals (like Sine,
Square wave or PWM) and use it as a DUT for your experiment
• Capture and display the signal from given Device Under Test
(DUT)
• Measure peak-to-peak and mean amplitude of the capture signal
using inbuilt functions of the scope
EQUIPMENT
To carry out this experiment, you will need:
• TBS1KB - Digital Oscilloscope from Tektronix
• MSP430 Launchpad board
• Voltage probe (provided with oscilloscope) / BNC cables
• Breadboard and connecting wires
• Simple circuit components – Resistor / capacitors
THEORY
• Maximum Value: Value of highest amplitude point in the acquired
signal, measured in volts.
• Minimum Value: Value of lowest amplitude point in the acquired
signal, measured in volts.
• Mean: (Maximum + Minimum) / 2
• Peak-Peak Value: Maximum - Minimum Value
MSP430AvgPkPkMeas -- Procedures
Step 1
DUT / SOURCE SETUP
• Ensure you have Energia IDE (software to program the MSP430
Launchpad boards) installed on your computer.
• Connect the MSP430 Launchpad board to PC using USB cable
• Program it with relevant code
• Take the output from mentioned probing point(s)
Step 2
MEASUREMENT / SCOPE SETUP
• Power ON the oscilloscope
• Connect the Channel 1 probe of the oscilloscope to Vout-1
• Acquire the signal(s) from circuit on oscilloscope
Step 3
• Do the Autoset on the scope to efficiently capture and view the
signal
signal
• If AUTOSET feature is not enabled, then manually set the
horizontal and vertical scale, and trigger condition to view 3-4
cycles of waveform without any clipping.
Step 4
• From the measurement menu, configure MEAN and PEAK-PEAK
measurement on acquired channel
Step 5
• Read the measured value and verify against the expected
MSP430PeriodFreq -- Overview
OBJECTIVES
After performing this lab exercise, learner will be able to:
• Program MSP430 Launchpad board to generate signals (like Sine,
Square wave or PWM) and use it as a DUT for your experiment
• Capture and display the signal from given Device Under Test
(DUT)
• Measure PERIOD and FREQUENCY of the capture signal using
inbuilt functions of the scope
EQUIPMENT
To carry out this experiment, you will need:
• TBS1KB - Digital Oscilloscope from Tektronix
• MSP430 Launchpad board
• Voltage probe (provided with oscilloscope) / BNC cables
• Breadboard and connecting wires
• Simple circuit components – Resistor / capacitors
THEORY
• Period: Time taken for 1 cycle of the signal
• Period = horizontal scale (sec/div) x no. of divisions occupied by 1
cycle
• Frequency: Number of cycles in 1 second = 1/Period (in Hz)
MSP430PeriodFreq -- Procedures
Step 1
DUT / SOURCE SETUP
• Ensure you have Energia IDE (software to program the MSP430
Launchpad boards) installed on your computer.
• Connect the MSP430 Launchpad board to PC using USB cable
• Program it with relevant code
• Take the output from mentioned probing point(s)
Step 2
MEASUREMENT / SCOPE SETUP
• Power ON the oscilloscope
• Connect the Channel 1 probe of the oscilloscope to Vout-1
• Acquire the signal(s) from circuit on oscilloscope
Step 3
• Do the Autoset on the scope to efficiently capture and view the
signal
• If AUTOSET feature is not enabled, then manually set the
horizontal and vertical scale, and trigger condition to view 3-4 cycles
of waveform without any clipping.
Step 4
• From the measurement menu, configure PERIOD and
FREQUENCY measurement on acquired channel
Step 5
• Read the measured value and verify against the expected
MSP430TonToffDuty -- Overview
OBJECTIVES
After performing this lab exercise, learner will be able to:
• Program MSP430 Launchpad board to generate signals (like Sine,
Square wave or PWM) and use it as a DUT for your experiment
• Capture and display the signal from given Device Under Test
(DUT)
• Measure ON time, OFF time and Duty Cycle of the capture PWM
signal using inbuilt functions of the scope
EQUIPMENT
To carry out this experiment, you will need:
• TBS1KB - Digital Oscilloscope from Tektronix
• MSP430 Launchpad board
• Voltage probe (provided with oscilloscope) / BNC cables
• Breadboard and connecting wires
• Simple circuit components – Resistor / capacitors
THEORY
• Pulse-width modulation (PWM) is a commonly used technique for
controlling power to inertial electrical devices, made practical by
modern electronic power switches. The average value of voltage
(and current) fed to the load is controlled by turning the switch
between supply and load on and off at a fast pace. The longer the
switch is on compared to the off periods, the higher the power
supplied to the load is.
MSP430TonToffDuty -- Procedures
Step 1
DUT / SOURCE SETUP
• Ensure you have Energia IDE (software to program the MSP430
Launchpad boards) installed on your computer.
• Connect the MSP430 Launchpad board to PC using USB cable
• Program it with relevant code
• Take the output from mentioned probing point(s)
Step 2
MEASUREMENT / SCOPE SETUP
• Power ON the oscilloscope
• Connect the Channel 1 probe of the oscilloscope to Vout-1
• Acquire the signal(s) from circuit on oscilloscope
Step 3
• Do the Autoset on the scope to efficiently capture and view the
signal
• If AUTOSET feature is not enabled, then manually set the
horizontal and vertical scale, and trigger condition to view 3-4 cycles
of waveform without any clipping.
Step 4
• From the measurement menu, configure POS WIDTH, NEG
WIDTH and DUTY CYCLE measurement on acquired channel
Step 5
• Read the measured value and verify against the expected
MSP430RiseFallTime -- Overview
OBJECTIVES
After performing this lab exercise, learner will be able to:
• Program MSP430 Launchpad board to generate signals (like Sine,
Square wave or PWM) and use it as a DUT for your experiment
• Capture and display the signal from given Device Under Test
(DUT)
• Measure RISE TIME and FALL TIME amplitude of the capture
signal using inbuilt functions of the scope
EQUIPMENT
To carry out this experiment, you will need:
• TBS1KB - Digital Oscilloscope from Tektronix
• MSP430 Launchpad board
• Voltage probe (provided with oscilloscope) / BNC cables
• Breadboard and connecting wires
• Simple circuit components – Resistor / capacitors
THEORY
• Rise time: time taken for signal swing from 10% to 90% of the final
value during a low-to-high transition of the signal.
• Fall time: time taken for signal swing from 90% to 10% of the final
value during a high-to-low transition of the signal.
MSP430RiseFallTime -- Procedures
Step 1
DUT/SOURCE SETUP
• Ensure you have Energia IDE (software to program the MSP430
Launchpad boards) installed on your computer.
• Connect the MSP430 Launchpad board to PC using USB cable
• Program it with relevant code
• Take the output from mentioned probing point(s)
Step 2
MEASUREMENT / SCOPE SETUP
• Power ON the oscilloscope
• Connect the Channel 1 probe of the oscilloscope to Vout-1
• Acquire the signal(s) from circuit on oscilloscope
Step 3
• Do the Autoset on the scope to efficiently capture and view the
signal
• If AUTOSET feature is not enabled, then manually set the
horizontal and vertical scale, and trigger condition to view 3-4 cycles
of waveform without any clipping.
Step 4
• From the measurement menu, configure RISE TIME and FALL
TIME measurement on acquired channel
Step 5
• Read the measured value and verify against the expected (set on
AFG/signal generator)
MSP430PhaseDelay -- Overview
OBJECTIVES
After performing this lab exercise, learner will be able to:
• Program MSP430 Launchpad board to generate signals (like Sine,
Square wave or PWM) and use it as a DUT for your experiment
• Capture and display the signal from given Device Under Test
(DUT)
• Measure PHASE and DELAY between the two signals using inbuilt
functions of the scope
EQUIPMENT
To carry out this experiment, you will need:
• TBS1KB - Digital Oscilloscope from Tektronix
• MSP430 Launchpad board
• Voltage probe (provided with oscilloscope) / BNC cables
• Breadboard and connecting wires
• Simple circuit components – Resistor / capacitors
THEORY
• Phase difference: It is defined as the difference in phase between
two waveforms at any point of time. As shown in the above figure,
the waveform represented in red is leading signal has a phase
difference of theta with the blue zero crossings.
• Delay: Phase difference defined in absolute time units
MSP430PhaseDelay -- Procedures
Step 1
DUT / SOURCE SETUP
• Ensure you have Energia IDE (software to program the MSP430
Launchpad boards) installed on your computer.
• Connect the MSP430 Launchpad board to PC using USB cable
• Program it with relevant code
• Take the output from mentioned probing point(s)
Step 2
MEASUREMENT / SCOPE SETUP
• Power ON the oscilloscope
• Connect the Channel 1 probe of the oscilloscope to Vout-1
• Connect the Channel 2 probe to Vout-2
• Acquire the signal(s) from circuit on oscilloscope
Step 3
• Do the Autoset on the scope to efficiently capture and view the
signal
• If AUTOSET feature is not enabled, then manually set the
horizontal and vertical scale, and trigger condition to view 3-4 cycles
of waveform without any clipping.
Step 4
• From the measurement menu, configure PHASE and DELAY
measurement on acquired channel
Step 5
• Read the measured value and verify against the expected
MSP430AreaMeas -- Overview
OBJECTIVES
After performing this lab exercise, learner will be able to:
• Program MSP430 Launchpad board to generate signals (like Sine,
Square wave or PWM) and use it as a DUT for your experiment
• Capture and display the signal from given Device Under Test
(DUT)
• Measure the area confined by the signal waveform in 1 cycles or
by complete acquisition using inbuilt functions of the scope
EQUIPMENT
To carry out this experiment, you will need:
• TBS1KB - Digital Oscilloscope from Tektronix
• MSP430 Launchpad board
• Voltage probe (provided with oscilloscope) / BNC cables
• Breadboard and connecting wires
• Simple circuit components – Resistor / capacitors
THEORY
• Waveform Area = Area confined by the signal waveform =
integration of the waveform over entire acquisition duration
• Cycle Area = Area confined by 1 cycle of the signal waveform =
integration of the waveform over one complete cycle
• Signal waveform area signifies the average (DC) value of the
signal. In case of a PWM signal the area will be directly proportional
to Duty Cycle of the PWM.
MSP430AreaMeas -- Procedures
Step 1
DUT / SOURCE SETUP
• Ensure you have Energia IDE (software to program the MSP430
Launchpad boards) installed on your computer.
• Connect the MSP430 Launchpad board to PC using USB cable
• Program it with relevant code
• Take the output from mentioned probing point(s)
Step 2
EXPERIMENT SETUP
• Power ON the oscilloscope
• Make the required connection between MSP430 board and
oscillosocpe
• Acquire the signal(s) from circuit on oscilloscope
Step 3
• Do the Autoset on the scope to efficiently capture and view the
signal
• If AUTOSET feature is not enabled, then manually set the
horizontal and vertical scale, and trigger condition to view 3-4 cycles
of waveform without any clipping.
Step 4
ADDING MEASUREMENTS
• Go to measurement menu by pressing MEASURE button on the
scope front panel
• Press CH1 (channel to be measured) and select AREA and
CYCLE AREA measurement using Multi-Purpose Knob (MPK)
button
• You can navigate through the measurement list by rotating the
MPK knob and select a measurement by pressing it
Step 5
• Read the measured value - AREA and CYCLE AREA for duty cycle
of 20%.
Step 6
• Repeat the measurement for signal with duty cycle of 50%
(Arduino pin # 8) and 80% (Arduino pin # 9)
• Verify against the expected / Calculated value.
MSP430BurstWidth -- Overview
OBJECTIVES
After performing this lab exercise, learner will be able to:
• Program MSP430 Launchpad board to generate signals (like Sine,
Square wave or PWM) and use it as a DUT for your experiment
• Capture and display the signal from given Device Under Test
(DUT)
• Measure width of the burst signal (series of transient events) in
capture signal using inbuilt functions of the scope
EQUIPMENT
To carry out this experiment, you will need:
• TBS1KB - Digital Oscilloscope from Tektronix
• MSP430 Launchpad board
• Voltage probe (provided with oscilloscope) / BNC cables
• Breadboard and connecting wires
• Simple circuit components – Resistor / capacitors
THEORY
• Burst Width = Duration of a burst (a series of transient events) and
is measured over the entire wave form or gated region.
MSP430BurstWidth -- Procedures
Step 1
DUT / SOURCE SETUP
• Ensure you have Energia IDE (software to program the MSP430
Launchpad boards) installed on your computer.
• Connect the MSP430 Launchpad board to PC using USB cable
• Program it with relevant code
• Take the output from mentioned probing point(s)
Step 2
EXPERIMENT SETUP
• Power ON the oscilloscope
• Connect the Channel 1 probe of the oscilloscope to Vout-1
• Acquire the signal(s) from circuit on oscilloscope
Step 3
• Do the Autoset on the scope to efficiently capture and view the
signal
• If AUTOSET feature is not enabled, then manually set the
horizontal and vertical scale, and trigger condition to view 3-4 cycles
of waveform without any clipping.
Step 4
ADDING MEASUREMENTS
• Go to measurement menu by pressing MEASURE button on the
scope front panel
• Press CH1 (channel to be measured) and select Burst Width
measurement using Multi-Purpose Knob (MPK) button
• You can navigate through the measurement list by rotating the
MPK knob and select a measurement by pressing it
Step 5
• Read the measured value and verify against the expected
MSP430LowHighMeas -- Overview
OBJECTIVES
After performing this lab exercise, learner will be able to:
• Program MSP430 Launchpad board to generate signals (like Sine,
Square wave or PWM) and use it as a DUT for your experiment
• Capture and display the signal from given Device Under Test
(DUT)
• Measure LOW, HIGH and AMPLITUDE of the capture signal using
inbuilt functions of the scope
• Differentiate LOW and HIGH measurements from MIN and MAX
measurements
EQUIPMENT
To carry out this experiment, you will need:
• TBS1KB - Digital Oscilloscope from Tektronix
• MSP430 Launchpad board
• Voltage probe (provided with oscilloscope) / BNC cables
• Breadboard and connecting wires
• Simple circuit components – Resistor / capacitors
THEORY
• Max Value: Value of highest amplitude point in the acquired signal,
measured in volts.
• Min Value: Value of lowest amplitude point in the acquired signal,
measured in volts.
• High amplitude = Highest value of the signal amplitude that has
higher histogram frequency (higher mode). HIGH amplitude
measurement is used to remove the effect of momentary noise /
glitch that may change the MAX amplitude for few moments in the
entire acquisition.
• Low amplitude = Lowest value of the signal amplitude that has
higher histogram frequency (higher mode). LOW amplitude
measurement is used to remove the effect of momentary noise /
glitch that may change the MIN amplitude for few moments in the
entire acquisition.
• Amplitude = HIGH – LOW
• Peak-to-Peak amplitude = MAX – MIN
MSP430LowHighMeas -- Procedures
Step 1
DUT / SOURCE SETUP
• Ensure you have Energia IDE (software to program the MSP430
Launchpad boards) installed on your computer.
• Connect the MSP430 Launchpad board to PC using USB cable
• Program it with relevant code
• Take the output from mentioned probing point(s)
• Make the associated circuit (for output signal) as shown below
Step 2
EXPERIMENT SETUP
• Power ON the oscilloscope
• Connect the Channel 1 probe of the oscilloscope to Vout-1
• Acquire the signal(s) from circuit on oscilloscope
Step 3
• Do the Autoset on the scope to efficiently capture and view the
signal
• If AUTOSET feature is not enabled, then manually set the
horizontal and vertical scale, and trigger condition to view 3-4 cycles
of waveform without any clipping.
• You may change the probe compensation (adjust the capacitor
through the hold on probe head that gets connected to oscilloscope
input channel) to amplifiy the overshoot - i.e. overcompensation
Step 4
ADDING MEASUREMENTS
• Go to measurement menu by pressing MEASURE button on the
scope front panel
• Press CH1 (channel to be measured) and select MIN, MAX,
PEAK-PEAK, LOW, HIGH and AMPLITUDE measurement using
Multi-Purpose Knob (MPK) button
• You can navigate through the measurement list by rotating the
MPK knob and select a measurement by pressing it
Step 5
• Read the measured value and compare
- HIGH vs MAX
- LOW vs MIN
- AMPLITUDE vs PEAK-PEAK
MSP430Overshoot -- Overview
OBJECTIVES
After performing this lab exercise, learner will be able to:
• Program MSP430 Launchpad board to generate signals (like Sine,
Square wave or PWM) and use it as a DUT for your experiment
• Capture and display the signal from given Device Under Test
(DUT)
• Measure Positive and Negative Overshoot of the capture signal
using inbuilt functions of the scope
EQUIPMENT
To carry out this experiment, you will need:
• TBS1KB - Digital Oscilloscope from Tektronix
• MSP430 Launchpad board
• Voltage probe (provided with oscilloscope) / BNC cables
• Breadboard and connecting wires
• Simple circuit components – Resistor / capacitors
THEORY
• Amplitude = HIGH – LOW
• Peak-to-Peak amplitude = MAX – MIN
• Positive Overshoot = Maximum deviation from “High” expressed as
percentage of nominal signal range (HIGH – LOW)
• Negative Overshoot = Maximum deviation in the lower side, from
nominal low value, expressed as percentage of nominal signal
range
MSP430Overshoot -- Procedures
Step 1
DUT / SOURCE SETUP
• Ensure you have Energia IDE (software to program the MSP430
Launchpad boards) installed on your computer.
• Connect the MSP430 Launchpad board to PC using USB cable
• Program it with relevant code
• Take the output from mentioned probing point(s)
• Make the associated circuit (for output signal) as shown below
Step 2
EXPERIMENT SETUP
• Power ON the oscilloscope
• Connect the Channel 1 probe of the oscilloscope to Vout-1
• Acquire the signal(s) from circuit on oscilloscope
Step 3
• Do the Autoset on the scope to efficiently capture and view the
signal
• If AUTOSET feature is not enabled, then manually set the
horizontal and vertical scale, and trigger condition to view 3-4 cycles
of waveform without any clipping.
• You may change the probe compensation (adjust the capacitor
through the hold on probe head that gets connected to oscilloscope
input channel) to amplifiy the overshoot
Step 4
ADDING MEASUREMENTS
• Go to measurement menu by pressing MEASURE button on the
scope front panel
• Press CH1 (channel to be measured) and select POS
OVERSHOOT and NEG OVERSHOOT measurement using MultiPurpose Knob (MPK) button
• You can navigate through the measurement list by rotating the
MPK knob and select a measurement by pressing it
Step 5
• Read the measured value and verify against the expected
MSP430EdgeCount -- Overview
OBJECTIVES
After performing this lab exercise, learner will be able to:
• Program MSP430 Launchpad board to generate signals (like Sine,
Square wave or PWM) and use it as a DUT for your experiment
• Capture and display the signal from given Device Under Test
(DUT)
• Measure numbe of rising and fallling edges in the capture signal
using inbuilt functions of the scope
EQUIPMENT
To carry out this experiment, you will need:
• TBS1KB - Digital Oscilloscope from Tektronix
• MSP430 Launchpad board
• Voltage probe (provided with oscilloscope) / BNC cables
• Breadboard and connecting wires
• Simple circuit components – Resistor / capacitors
THEORY
• Rising Edge Count = Number of positive transitions from the low
reference value to the high reference value in the waveform or gated
region.
• Falling Edge Count = Number of negative transitions from the high
reference value to the low reference value in the waveform or gated
region.
MSP430EdgeCount -- Procedures
Step 1
DUT / SOURCE SETUP
• Ensure you have Energia IDE (software to program the MSP430
Launchpad boards) installed on your computer.
• Connect the MSP430 Launchpad board to PC using USB cable
• Program it with relevant code
• Take the output from mentioned probing point(s)
• Make the associated circuit (for output signal) as shown below
Step 2
EXPERIMENT SETUP
• Power ON the oscilloscope
• Connect the Channel 1 probe of the oscilloscope to Vout-1
• Acquire the signal(s) from circuit on oscilloscope
Step 3
• Do the Autoset on the scope to efficiently capture and view the
signal
• If AUTOSET feature is not enabled, then manually set the
horizontal and vertical scale, and trigger condition to view waveform
without any clipping. Make the horizontal scale (Timebase) =
1ms/div
Step 4
ADDING MEASUREMENTS
• Go to measurement menu by pressing MEASURE button on the
scope front panel
• Press CH1 (channel to be measured) and select RISE EDGE CNT
and FALL EDGE CNT measurement using Multi-Purpose Knob
(MPK) button
• You can navigate through the measurement list by rotating the
MPK knob and select a measurement by pressing it
Step 5
• Read the measured value and verify against the expected
MSP430PulseCount -- Overview
OBJECTIVES
After performing this lab exercise, learner will be able to:
• ProgramMSP430 Launchpad board to generate signals (like Sine,
Square wave or PWM) and use it as a DUT for your experiment
• Capture and display the signal from given Device Under Test
(DUT)
• Measure number of positive and negative pulses in the captured
signal using inbuilt functions of the scope
EQUIPMENT
To carry out this experiment, you will need:
• TBS1KB - Digital Oscilloscope from Tektronix
• MSP430 Launchpad board
• Voltage probe (provided with oscilloscope) / BNC cables
• Breadboard and connecting wires
• Simple circuit components – Resistor / capacitors
THEORY
• Positive Pulse Count = Number of positive pulses that rise above
the mid reference crossing in the waveform or gated region.
• Negative Pulse Count = Number of negative pulses that fall below
the mid reference crossing in the waveform or gated region.
MSP430PulseCount -- Procedures
Step 1
DUT / SOURCE SETUP
• Ensure you have Energia IDE (software to program the MSP430
Launchpad boards) installed on your computer.
• Connect the MSP430 Launchpad board to PC using USB cable
• Program it with relevant code
• Take the output from mentioned probing point(s)
• Make the associated circuit (for output signal) as shown below
Step 2
EXPERIMENT SETUP
• Power ON the oscilloscope
• Connect the Channel 1 probe of the oscilloscope to Vout-1
• Connect the Channel 2 probe to Vout-2
• Acquire the signal(s) from circuit on oscilloscope
Step 3
• Do the Autoset on the scope to efficiently capture and view the
signal
• If AUTOSET feature is not enabled, then manually set the
horizontal and vertical scale, and trigger condition to view waveform
without any clipping. Make the horizontal scale (Timebase) =
1ms/div
Step 4
ADDING MEASUREMENTS
• Go to measurement menu by pressing MEASURE button on the
scope front panel
• Press CH1 (channel to be measured) and select POS PULSE
CNT and NEG PULSE CNT measurement using Multi-Purpose
Knob (MPK) button
• You can navigate through the measurement list by rotating the
MPK knob and select a measurement by pressing it
Step 5
• Read the measured value and verify against the expected (set on
AFG/signal generator)
MSP430EdgeTrigger -- Overview
OBJECTIVES
After performing this lab exercise, learner will be able to:
• Program MSP430 Launchpad board to generate signals (like Sine,
Square wave or PWM) and use it as a DUT for your experiment
• Capture and display the signal from given Device Under Test
(DUT)
• Learn the basics of edge triggering options available
• Use edge trigger for capturing a signal when amplitude rises above
/ fall below a defined amplitude
EQUIPMENT
To carry out this experiment, you will need:
• TBS1KB - Digital Oscilloscope from Tektronix
• MSP430 Launchpad board
• Voltage probe (provided with oscilloscope) / BNC cables
• Breadboard and connecting wires
• Simple circuit components – Resistor / capacitors
THEORY
• Triggering is the process of viewing the Specific part of signal on
the Screen. The trigger makes repetitive waveforms appear static on
the oscilloscope display by repeatedly displaying the same portion
of the input signal
• Edge triggering: Edge triggering is a process of Triggering on the
first occurrence of the edge (Rising of Falling). We can use
Ch1/Ch2/Ext channels as sources for triggering.
Triggering on Rising
Edge
Triggering on
Falling Edge
MSP430EdgeTrigger -- Procedures
Step 1
DUT / SOURCE SETUP
• Ensure you have Energia IDE (software to program the MSP430
Launchpad boards) installed on your computer.
• Connect the MSP430 Launchpad board to PC using USB cable
• Program it with relevant code
• Take the output from mentioned probing point(s)
• Make the associated circuit (for output signal) as shown below
Step 2
MEASUREMENT / SCOPE SETUP
• Power ON the oscilloscope
• Connect the Channel 1 probe of the oscilloscope to Vout-1
• Connect the Channel 2 probe to Vout-2
• Acquire the signal(s) from circuit on oscilloscope
Step 3
• Do the Autoset on the scope to efficiently capture and view the
signal
• If AUTOSET feature is not enabled, then manually set the
horizontal and vertical scale, and trigger condition to view 3-4 cycles
of waveform without any clipping.
Step 4
• From the the trigger menu define the following:
Trigger Type = EDGE
Trigger Source = CHANNEL 1
Slope = RISING
Step 5
• Change the trigger level using knob - Observe the signals is
acquired and displayed on the screen when waveform crosses the
trigger level (trigger condition is met)
Step 6
Step 6
• From the the trigger menu, you may change different parameters
like Source - CHANNEL 1 or 2, Slope as RISING or FALLING and
see the effect on waveform displayed on screen.
MSP430PulseTrigger -- Overview
OBJECTIVES
After performing this lab exercise, learner will be able to:
• Program MSP430 Launchpad board to generate signals (like Sine,
Square wave or PWM) and use it as a DUT for your experiment
• Capture and display the signal from given Device Under Test
(DUT)
• Learn the basics of pulse width triggering options available
• Use pulse width trigger for capturing a signal when width matches
defined duration
EQUIPMENT
To carry out this experiment, you will need:
• TBS1KB - Digital Oscilloscope from Tektronix
• MSP430 Launchpad board
• Voltage probe (provided with oscilloscope) / BNC cables
• Breadboard and connecting wires
• Simple circuit components – Resistor / capacitors
THEORY
• Triggering is the process of viewing the Specific part of signal on
the Screen. The trigger makes repetitive waveforms appear static on
the oscilloscope display by repeatedly displaying the same portion
of the input signal
• Pulse Triggering. Pulse triggering, is a process of triggering a
signal indefinitely on the first occurrence of a pulse with specified
Pulse Width. Trigger conditions may be “>, < and =” pulse width
specified.
MSP430PulseTrigger -- Procedures
Step 1
DUT / SOURCE SETUP
• Ensure you have Energia IDE (software to program the MSP430
Launchpad boards) installed on your computer.
• Connect the MSP430 Launchpad board to PC using USB cable
• Program it with relevant code
• Take the output from mentioned probing point(s)
Step 2
MEASUREMENT / SCOPE SETUP
• Power ON the oscilloscope
• Make the required connection between MSP430 board and
oscillosocpe
• Acquire the signal(s) from circuit on oscilloscope
Step 3
• Do the Autoset on the scope to efficiently capture and view the
signal
• If AUTOSET feature is not enabled, then manually set the
horizontal and vertical scale, and trigger condition to view 3-4 cycles
of waveform without any clipping.
Step 4
• From the the trigger menu define the following:
Trigger Type = PULSE
Trigger Source = Ch1
Pulse Width = 100us
Operator = '=' (equal to)
Step 5
• Change the trigger pulse width using knob - Observe the signals
is acquired and displayed on the screen when trigger pulse widhth
is 100us (trigger condition is met)
Step 6
• From the the trigger menu, you may change different parameters
like Source - CHANNEL 1 or 2, Pulse Width value and Logical
Operator (=, >, < or not equal to) and see the effect on waveform
displayed on screen.
MSP430MathMultiply -- Overview
OBJECTIVES
After performing this lab exercise, learner will be able to:
• Program MSP430 Launchpad board to generate signals (like Sine,
Square wave or PWM) and use it as a DUT for your experiment
• Capture and display the signal from given Device Under Test
(DUT)
• Learn the basics of waveform math operation available
• Use Math Multiplication to find product of two waveforms / signal
on live channels
EQUIPMENT
To carry out this experiment, you will need:
• TBS1KB - Digital Oscilloscope from Tektronix
• MSP430 Launchpad board
• Voltage probe (provided with oscilloscope) / BNC cables
• Breadboard and connecting wires
• Simple circuit components – Resistor / capacitors
THEORY
• Math channel is provided in the oscilloscope to perform
mathematical operation right on signals
• Math Multiplication: When two waveforms are multiplied, the
amplitude of math output is the product of amplitudes of two signals
at any point of time.
MSP430MathMultiply -- Procedures
Step 1
DUT / SOURCE SETUP
• Ensure you have Energia IDE (software to program the MSP430
Launchpad boards) installed on your computer.
• Connect the MSP430 Launchpad board to PC using USB cable
• Program it with relevant code
• Take the output from mentioned probing point(s)
• Make the associated circuit (for output signal) as shown below
Step 2
EXPERIMENT SETUP
• Power ON the oscilloscope
• Connect the Channel 1 probe of the oscilloscope to Vout-1
• Connect the Channel 2 probe to Vout-2
• Acquire the signal(s) from circuit on oscilloscope
Step 3
• Do the Autoset on the scope to efficiently capture and view the
signal
• If AUTOSET feature is not enabled, then manually set the
horizontal and vertical scale, and trigger condition to view 3-4
cycles of waveform without any clipping.
Step 4
• Click Math button to invoke Math menu.
• Select OPERATION = Product (x)
• Set sources = CH1 x CH2
Step 5
ADDING MEASUREMENTS
• Go to measurement menu by pressing MEASURE button on the
scope front panel
• Add Pk-Pk measurement for CH1, CH2 and MATH waveform from
measurement menu.
• You can navigate through the measurement list by rotating the
MPK knob and select a measurement by pressing it
Step 6
• Read the measured value and verify against the expected
MSP430MathSubtrac -- Overview
OBJECTIVES
After performing this lab exercise, learner will be able to:
• Program MSP430 Launchpad board to generate signals (like Sine,
Square wave or PWM) and use it as a DUT for your experiment
• Capture and display the signal from given Device Under Test
(DUT)
• Learn the basics of waveform math operation available
• Use Math subtraction to find difference of two waveforms / signal
on live channels
EQUIPMENT
To carry out this experiment, you will need:
• TBS1KB - Digital Oscilloscope from Tektronix
• MSP430 Launchpad board
• Voltage probe (provided with oscilloscope) / BNC cables
• Breadboard and connecting wires
• Simple circuit components – Resistor / capacitors
THEORY
• Math channel is provided in the oscilloscope to perform
mathematical operation right on signals
• Math Subtraction: When two waveforms are added, the amplitude
of math output is the difference of amplitudes of two signals at any
point of time.
MSP430MathSubtrac -- Procedures
Step 1
DUT / SOURCE SETUP
• Ensure you have Energia IDE (software to program the MSP430
Launchpad boards) installed on your computer.
• Connect the MSP430 Launchpad board to PC using USB cable
• Enable the signal generator output
• Take the output from mentioned probing point(s)
Step 2
EXPERIMENT SETUP
• Power ON the oscilloscope
• Connect the Channel 1 probe of the oscilloscope to Vout-1
• Connect the Channel 2 probe to Vout-2
• Acquire the signal(s) from circuit on oscilloscope
Step 3
• Do the Autoset on the scope to efficiently capture and view the
signal
• If AUTOSET feature is not enabled, then manually set the
horizontal and vertical scale, and trigger condition to view 3-4 cycles
of waveform without any clipping.
Step 4
• Click Math button to invoke Math menu.
• Select OPERATION = Subtraction (-)
• Set sources = CH1 - CH2
Step 5
• You will see the Math channel (red trace) as CH1-CH2.
• Position and scale can be changed using MPK knob.
Step 6
ADDING MEASUREMENTS
• Go to measurement menu by pressing MEASURE button on the
scope front panel
• Add Pk-Pk measurement for CH1, CH2 and MATH waveform from
measurement menu.
• You can navigate through the measurement list by rotating the
MPK knob and select a measurement by pressing it
Step 7
• Read the measured value and verify against the expected (Math =
CH1 - CH2)
MSP430MathAddition -- Overview
OBJECTIVES
After performing this lab exercise, learner will be able to:
• Program MSP430 Launchpad board to generate signals (like Sine,
Square wave or PWM) and use it as a DUT for your experiment
• Capture and display the signal from given Device Under Test
(DUT)
• Identify waveform math operation available
• Use Math Addition to add two waveforms / signal on live channels
EQUIPMENT
To carry out this experiment, you will need:
• TBS1KB - Digital Oscilloscope from Tektronix
• MSP430 Launchpad board
• Voltage probe (provided with oscilloscope) / BNC cables
• Breadboard and connecting wires
• Simple circuit components – Resistor / capacitors
THEORY
• Math channel is provided in the oscilloscope to perform
mathematical operation right on signals
• Math Addition: When two waveforms are added, the amplitude of
math output is the sum of amplitudes of two signals at any point of
time.
MSP430MathAddition -- Procedures
Step 1
DUT / SOURCE SETUP
• Ensure you have Energia IDE (software to program the MSP430
Launchpad boards) installed on your computer.
• Connect the MSP430 Launchpad board to PC using USB cable
• Program it with relevant code
• Take the output from mentioned probing point(s)
Step 2
EXPERIMENT SETUP
• Power ON the oscilloscope
• Connect the Channel 1 probe of the oscilloscope to Vout-1
• Connect the Channel 2 probe to Vout-2
• Acquire the signal(s) from circuit on oscilloscope
Step 3
• Do the Autoset on the scope to efficiently capture and view the
signals
• If AUTOSET feature is not enabled, then manually set the
horizontal and vertical scale, and trigger condition to view 3-4 cycles
of waveform without any clipping.
Step 4
• Click Math button to invoke Math menu.
• Select OPERATION = Addition (+)
• Set sources = CH1 + CH2
Step 5
• You will see the Math channel (red trace) as CH1+CH2. Position
and scale can be changed using MPK knob.
Step 6
ADDING MEASUREMENTS
• Go to measurement menu by pressing MEASURE button on the
scope front panel
• Add Pk-Pk measurement for CH1, CH2 and MATH waveform from
measurement menu.
• You can navigate through the measurement list by rotating the
MPK knob and select a measurement by pressing it
Step 7
• Read the measured value and verify against the expected (Math =
CH1 + CH2)
MSP430FFTSpectrum -- Overview
OBJECTIVES
After performing this lab exercise, learner will be able to:
• Program MSP430 Launchpad board to generate signals (like Sine,
Square wave & PWM) and use it as a DUT for your experiment
• Capture and display the signal from given Device Under Test
(DUT)
• Evaluate the FFT of a given signal
• Analyze the effect of different windowing method on spectrum
• Analyzer the details of the spectrum using frequency zoom
EQUIPMENT
To carry out this experiment, you will need:
• TBS1KB - Digital Oscilloscope from Tektronix
• MSP430 Launchpad board
• Voltage probe (provided with oscilloscope) / BNC cables
• Breadboard and connecting wires
• Simple circuit components – Resistor / capacitors
THEORY
• Fast Fourier Transform or FFT in short, is an algorithm to compute
the discrete Fourier Transform of a time series / signal in a faster
way.
• FFT is used to represent a time-varying signal in frequency
domain. Any time domain signal can be represented by combination
of fundamental frequency and its harmonics in frequency domain.
FFT helps us resolve and visualize a time domain signal in its
frequency components.
• N-point FFT of a signal, sampled at the rate of fS samples per
second, will yield frequency components from 0Hz to fS/2 Hz with a
frequency resolution of fS/N Hz.
• A pure sine wave will have single frequency component in FFT
spectrum.
• Any complex wave, for example a square wave will have multiple
frequency (called harmonics) components other than fundamental
frequency.
MSP430FFTSpectrum -- Procedures
Step 1
DUT / SOURCE SETUP
• Ensure you have Energia IDE (software to program the MSP430
Launchpad boards) installed on your computer.
• Connect the MSP430 Launchpad board to PC using USB cable
• Program it with relevant code
• Take the output from mentioned probing point(s)
Step 2
EXPERIMENT SETUP
• Power ON the oscilloscope
• Connect the Channel 1 probe of the oscilloscope to Vout-1
• Connect the Channel 2 probe to Vout-2
• Acquire the signal(s) from circuit on oscilloscope
Step 3
• Do the Autoset on the scope to efficiently capture and view the
signal
• If AUTOSET feature is not enabled, then manually set the
horizontal and vertical scale, and trigger condition to view 3-4 cycles
of waveform without any clipping.
Step 4
• Press the FFT button from the front panel to see the spectrum of
the signal
• Make the "Source WFM" ON to see the time domain signal along
with its FFT
Step 5
• Ensure the FFT source is CH2 - Square wave
• You will see the fundamental frequency and odd harmonics
Step 6
• Change the FFT source to CH1 - Sine wave
• You will see the single spike at fundamental frequency
Step 7
• Modify the window to see the effect on the spectrum
• You can use FFT zoom to have a closer look at frequencies
• You can pan the FFT spectrum using 'horizontal position' knob
MSP430CursRiseFall -- Overview
OBJECTIVES
After performing this lab exercise, learner will be able to:
• Program MSP430 Launchpad board to generate signals (like Sine,
Square wave or PWM) and use it as a DUT for your experiment
• Capture and display the signal from given Device Under Test
(DUT)
• Understand the need for cursors
• Use vertical cursors to measure Rise and Fall time of the signal
EQUIPMENT
To carry out this experiment, you will need:
• TBS1KB - Digital Oscilloscope from Tektronix
• MSP430 Launchpad board
• Voltage probe (provided with oscilloscope) / BNC cables
• Breadboard and connecting wires
• Simple circuit components – Resistor / capacitors
THEORY
• Cursors are the on-screen markers associated with a channels on
an oscilloscope for making measurement. Use of markers enables
better accuracy than a simple grid based measurement of signal
parameters.
• There are 2 numbers of cursors that can be moved by MultiPurpose Knob (MPK button) on the oscilloscope, very often, one by
one.
• Cursors could be of two types – Horizontal and Vertical cursors.
• The vertical cursors are used for measurement of timing
information. The time position of the two cursors, with respect to
horizontal position, is displayed based on the horizontal scale.
• Apart from time of each individual cursor, the difference between
them (delta t) and its inverse (1/delta t) is also show. This helps in
quick measurement of period and frequency when cursors are
placed containing one cycle of the waveform.
• For rise time measurement, one can place two vertical cursors in
such a way that it touches the 10% and 90% level of rising
transition. The delta t between the cursors will be the Rise Time.
MSP430CursRiseFall -- Procedures
Step 1
DUT/SOURCE SETUP
• Ensure you have Energia IDE (software to program the MSP430
Launchpad boards) installed on your computer.
• Connect the MSP430 Launchpad board to PC using USB cable
• Program it with relevant code
• Take the output from mentioned probing point(s)
Step 2
EXPERIMENT SETUP
• Power ON the oscilloscope
• Connect the Channel 1 probe of the oscilloscope to Vout-1
• Acquire the signal(s) from circuit on oscilloscope
Step 3
• Do the Autoset on the scope to efficiently capture and view the
signal
• Once the autoset is done, select the RISE EDGE icon (autoset to
see the rising edge)
• If AUTOSET feature is not enabled, then manually set the
horizontal and vertical scale, and trigger condition to view rising
edge of waveform without any clipping.
Step 4
ADDING MEASUREMENTS
• Go to measurement menu by pressing MEASURE button on the
scope front panel
• Press CH1 (channel to be measured) and select MIN, MAX and
PEAK-PEAK measurement using Multi-Purpose Knob (MPK) button
• You can navigate through the measurement list by rotating the
MPK knob and select a measurement by pressing it
Step 5
• Go to cursor menu by pressing CURSOR button on the scope
front panel
• TYPE = TIME (Vertical cursors)
• SOURCE = CH1
Step 6
• Select CURSOR1 and position it using MPK knob in such a way
that it is at 10% of the transition i.e. = Cursor1 voltage reads MIN
value + 10% of PEAK-to-PEAK value
• Select CURSOR2 and position it using MPK knob in such a way
that it is at 90% of the transition i.e. = Cursor2 voltage reads MIN
value + 90% of PEAK-to-PEAK value
• Read the Delta T value - This is the Rise Time
Step 7
• Similarly, measure the Fall Time on the falling edge
MSP430CursorPeriod -- Overview
OBJECTIVES
After performing this lab exercise, learner will be able to:
• Program MSP430 Launchpad board to generate signals (like Sine,
Square wave or PWM) and use it as a DUT for your experiment
• Capture and display the signal from given Device Under Test
(DUT)
• Understand the need for cursors
• Use vertical cursors to measure Period of the signal
EQUIPMENT
To carry out this experiment, you will need:
• TBS1KB - Digital Oscilloscope from Tektronix
• MSP430 Launchpado board
• Voltage probe (provided with oscilloscope) / BNC cables
• Breadboard and connecting wires
• Simple circuit components – Resistor / capacitors
THEORY
• Cursors are the on-screen markers associated with a channels on
an oscilloscope for making measurement. Use of markers enables
better accuracy than a simple grid based measurement of signal
parameters.
• There are 2 numbers of cursors that can be moved by MultiPurpose Knob (MPK button) on the oscilloscope, very often, one by
one.
• Cursors could be of two types – Horizontal and Vertical cursors.
• The vertical cursors are used for measurement of timing
information. The time position of the two cursors, with respect to
horizontal position, is displayed based on the horizontal scale.
• Apart from time of each individual cursor, the difference between
them (delta t) and its inverse (1/delta t) is also show. This helps in
quick measurement of period and frequency when cursors are
placed containing one cycle of the waveform.
MSP430CursorPeriod -- Procedures
Step 1
DUT / SOURCE SETUP
• Ensure you have Energia IDE (software to program the MSP430
Launchpad boards) installed on your computer.
• Connect the MSP430 Launchpad board to PC using USB cable
• Program it with relevant code
• Take the output from mentioned probing point(s)
• Make the associated circuit (for output signal) as shown below
Step 2
EXPERIMENT SETUP
• Power ON the oscilloscope
• Connect the Channel 1 probe of the oscilloscope to Vout-1
• Acquire the signal(s) from circuit on oscilloscope
Step 3
• Do the Autoset on the scope to efficiently capture and view the
signal
• If AUTOSET feature is not enabled, then manually set the
horizontal and vertical scale, and trigger condition to view 3-4 cycles
of waveform without any clipping.
Step 4
• Go to cursor menu by pressing CURSOR button on the scope
front panel
• TYPE = TIME (Vertical cursors)
• SOURCE = CH1
Step 5
• Select CURSOR1 and position it using MPK knob to touch the first
positive peak of the sine wave
• Select CURSOR2 and position it using MPK knob to touch the
next positive peak of the sine wave
• Read the DeltaV value - It is PERIOD of the signal
• Inverse of the Delta T value -FREQUENCY of the signal
Step 6
ADDING MEASUREMENTS
• Go to measurement menu by pressing MEASURE button on the
scope front panel
• Press CH1 (channel to be measured) and select PERIOD and
FREQUENCY measurement using Multi-Purpose Knob (MPK)
button
• You can navigate through the measurement list by rotating the
MPK knob and select a measurement by pressing it
Step 7
• Compare the Peak to Peak value of the signal measuring using
cursors against built in measurement
MSP430CursorPk2Pk -- Overview
OBJECTIVES
After performing this lab exercise, learner will be able to:
• Program MSP430 Launchpad board to generate signals (like Sine,
Square wave or PWM) and use it as a DUT for your experiment
• Capture and display the signal from given Device Under Test
(DUT)
• Understand the need for cursors
• Use horizontal cursors to measure amplitude of the signal - Peak
to Peak measurement using cursors
EQUIPMENT
To carry out this experiment, you will need:
• TBS1KB - Digital Oscilloscope from Tektronix
• MSP430 Launchpad board
• Voltage probe (provided with oscilloscope) / BNC cables
• Breadboard and connecting wires
• Simple circuit components – Resistor / capacitors
THEORY
• Cursors are the on-screen markers associated with a channels on
an oscilloscope for making measurement. Use of markers enables
better accuracy than a simple grid based measurement of signal
parameters.
• There are 2 numbers of cursors that can be moved by MultiPurpose Knob (MPK button) on the oscilloscope, very often, one by
one.
• Cursors could be of two types – Horizontal and Vertical cursors.
• Horizontal cursors are used for measurement of amplitude. The
amplitude value of cursors meeting the waveform is displayed for
each of the cursors – based on the waveform cursor is associated
with and vertical scale of the waveform.
MSP430CursorPk2Pk -- Procedures
Step 1
DUT / SOURCE SETUP
• Ensure you have Energia IDE (software to program the MSP430
Launchpad boards) installed on your computer.
• Connect the MSP430 Launchpad board to PC using USB cable
• Program it with relevant code
• Take the output from mentioned probing point(s)
• Make the associated circuit (for output signal) as shown below
Step 2
EXPERIMENT SETUP
• Power ON the oscilloscope
• Connect the Channel 1 probe of the oscilloscope to Vout-1
• Acquire the signal(s) from circuit on oscilloscope
Step 3
• Do the Autoset on the scope to efficiently capture and view the
signal
• If AUTOSET feature is not enabled, then manually set the
horizontal and vertical scale, and trigger condition to view 3-4 cycles
of waveform without any clipping.
Step 4
• Go to cursor menu by pressing CURSOR button on the scope
front panel
• TYPE = AMPLITUDE (horizontal cursors)
• SOURCE = CH1
Step 5
• Select CURSOR1 and position it using MPK knob to touch the
positive peak of the sine wave
• Select CURSOR2 and position it using MPK knob to touch the
negative peak of the sine wave
• Read the DeltaV value
Step 6
ADDING MEASUREMENTS
• Go to measurement menu by pressing MEASURE button on the
scope front panel
• Press CH1 (channel to be measured) and select PEAK-PEAK
measurement using Multi-Purpose Knob (MPK) button
• You can navigate through the measurement list by rotating the
MPK knob and select a measurement by pressing it
Step 7
• Compare the Peak to Peak value of the signal measuring using
cursors against built in measurement
MSP430 Lab Experiment Design Guide
Details of MSP430 Launchpad Board setup, programming
and additional circuit required for lab experiments
Version: 1.0
08 January 2014
Revision History
#
DATE
VER.
REVISION DESCRIPTION
ORIGINATOR
1.
16-Dec-2013
0.7
Initial version, circuit diagram for each signal
type generated by MSP430 Launchpad board
Mukesh Soni
2.
17-Dec-2013
0.8
Verified code for each signal type – linked in a
tabular format for each labs (of package / FRG)
we will supply the code with
Mukesh Soni
3.
29-Dec-2013
1.0
Final Version
Mukesh Soni
4.
5.
Contents
Revision History ............................................................................................................................................ 2
How to program MSP430 Launchpad? ......................................................................................................... 3
MSP430 Launchpad as DUT: Basic Signals generated................................................................................... 7
Dual Channel Square Wave (180 degree phase) ...................................................................................... 7
Dual Channel Square Wave (90 degree phase) ........................................................................................ 7
PWM Signal (Variable Duty Cycle) ............................................................................................................ 8
Dual Channel Square Wave (different frequencies) ................................................................................. 8
Burst of Square Pulses .............................................................................................................................. 9
Pulse Train (variable Width)...................................................................................................................... 9
MSP430 Launchpad Lab Experiment Design............................................................................................... 10
How to program MSP430 Launchpad?
STEP: 1.
Obtain MSP430 Launchpad board
STEP: 2.
Download the Energia IDE from - http://energia.nu/download/ - that is suitable for
your PC operating system (to program your MSP430 Launchpad board).
STEP: 3.
Install the Energia software on your PC. This is how IDE would look like:
STEP: 4.
Connect the MSP430 Launchpad board using USB cable provided to your PC. Wait till
the necessary drivers are installed and device is recognized as COM port.
USB Cable
STEP: 5.
Select the correct MSP430 Launchpad Board type as show below: Tools > Board >
STEP: 6.
Ensure that COM Port identified for your MSP430 Launchpad board is correct. You can
also change / select appropriate COM Port your MSP430 Launchpad is connected as
from following menu: Tools > Serial Port >
STEP: 7.
Once the setting is complete, we are ready to download the program on MSP430
Launchpad board. We can test the setup by programming MSP430 Launchpad bard
with an example code (sketch). Go to : File > Examples > 1.Basics > Blink
STEP: 8.
Click on the Right Arrow button (highlighted in orange color in the image below) to
compile and upload the binary to MSP430 Launchpad board. Once the upload is done,
you will see ‘RED LED’ on board flashing – on for 1 second and off for 1 second.
STEP: 9.
Now that setup is successfully completed and tested, open the relevant program (.ino
file as specified by the lab experiment) using menu option – File > Open
STEP: 10.
Using UPLOAD button (circular button with arrow pointing to right) we can compile
the program and upload the compiled binary file to MSP430 Launchpad board.
STEP: 11.
Once the board is programmed, it will start generating signals at specified pins. The
board is ready to probe (or to connect external RC circuits) as per lab needs.
MSP430 Launchpad as DUT: Basic Signals generated
Dual Channel Square Wave (180 degree phase)
Output Circuit:
Dual Channel Square Wave (90 degree phase)
Output Circuit:
PWM Signal (Variable Duty Cycle)
Output Circuit:
Dual Channel Square Wave (different frequencies)
Output Circuit:
Burst of Square Pulses
Output Circuit:
Pulse Train (variable Width)
Output Circuit:
P1.0
P1.0
P1.0
SigType1_Square_f1K_ph180.ino
SigType1_Square_f1K_ph180.ino
SigType1_Square_f1K_ph180.ino
SigType1_Square_f1K_ph180.ino
SigType3_Square_f1K_ph90.ino
SigType4_PWM_f16K_dc10_90.ino
SigType1_Square_f1K_ph180.ino
SigType1_Square_f1K_ph180.ino
SigType6_Burst.ino
SigType6_Burst.ino
SigType1_Square_f1K_ph180.ino
SigType7_PulseTrain_Var_Width.ino
SigType3_Square_f1K_ph90.ino
SigType3_Square_f1K_ph90.ino
SigType5_Square_f780_f7800.ino
SigType1_Square_f1K_ph180.ino
SigType1_Square_f1K_ph180.ino
SigType1_Square_f1K_ph180.ino
SigType1_Square_f1K_ph180.ino
MSP430AvgPkPkMeas
MSP430PeriodFreq
MSP430TonToffDuty
MSP430RiseFallTime
MSP430PhaseDelay
MSP430AreaMeas
MSP430LowHighMeas
MSP430Overshoot
MSP430EdgeCount
MSP430PulseCount
MSP430BurstWidth
MSP430EdgeTrigger
MSP430PulseTrigger
MSP430MathAddition
MSP430MathSubtrac
MSP430MathMultiply
MSP430FFTSpectrum
MSP430CursorPk2Pk
MSP430CursorPeriod
MSP430CursRiseFall
Square , Square
Square , Square
P1.0, P1.6
P1.0, P1.6
P1.0
P1.0
P1.0
Square
Square
Square
Square
Square , Square
P1.0, P1.6
P1.0
Pulse Train
Square
Square Burst
Square Burst
Square
Square
PWM
P1.0
P1.0
P1.0
P1.2
Square , Square
P1.0, P1.6
Square
Square
Square
Square
Square
Signal Generated
Square
Pin Used
P1.0
P1.0
P1.0
P1.0
P1.0
SigType1_Square_f1K_ph180.ino
MSP430MinMaxMeas
P1.0
SigType1_Square_f1K_ph180.ino
Code Used
MSP430 LAUNCHPAD
MSP430RMSMeas
N/A
N/A
N/A
N/A
LAB EXPERIMENMT
Courseware Package
MSP430 Launchpad Lab Experiment Design
LAB – 7: MEASURING AMPLITUDE AND
TIMING INFORMATION OF A SIGNAL USING
CURSORS
LAB – 6: PERFORMING MATH OPERATIONS
ON INPUT CHANNELS
LAB – 5: TRIGGERING THE SIGNAL – USING
EDGE AND WIDTH TRIGGERING
LAB – 4: SIGNAL ANALYSIS USING
ADVANCED MEASUREMENTS
LAB – 3: MEASURING TIMING
INFORMATION OF A SIGNAL USING BUILTIN FUNCTIONS (AUTOMATED
MEASUREMENTS)
LAB – 2: MEASURING SIGNAL AMPLITUDE
USING IN-BUILT FUNCTIONS (AUTOMATED
MEASUREMENTS)
LAB – 1: MEASURING AMPLITUDE AND
TIMING INFORMATION OF A SIGNAL USING
SCOPE GRATICULE
Lab Description
Code Used
Square
Square , Square
Pulse Train
Square , Square
Square , Square
Square , Square
P1.0
P1.0
P1.0
P1.0
P1.0
P1.0
P1.0
P1.0, P1.6
P1.2
P1.0
P1.0
P1.0
P1.0
P1.0
P1.0
P1.0, P1.6
P1.0, P1.6
P1.0, P1.6
P1.0
P1.0
P1.0
P1.0
1D SigType1_Square_f1K_ph180.ino
2A SigType1_Square_f1K_ph180.ino
2B SigType1_Square_f1K_ph180.ino
2C SigType1_Square_f1K_ph180.ino
3A SigType1_Square_f1K_ph180.ino
3B SigType1_Square_f1K_ph180.ino
3C SigType1_Square_f1K_ph180.ino
3D SigType3_Square_f1K_ph90.ino
4A SigType4_PWM_f16K_dc10_90.ino
4B SigType1_Square_f1K_ph180.ino
4C SigType1_Square_f1K_ph180.ino
4D SigType6_Burst.ino
4E SigType6_Burst.ino
5A SigType1_Square_f1K_ph180.ino
5B SigType7_PulseTrain_Var_Width.ino
6A SigType3_Square_f1K_ph90.ino
6B SigType3_Square_f1K_ph90.ino
6C SigType5_Square_f780_f7800.ino
6D SigType1_Square_f1K_ph180.ino
7A SigType1_Square_f1K_ph180.ino
7B SigType1_Square_f1K_ph180.ino
7C SigType1_Square_f1K_ph180.ino
Square
Square
Square
Square
Square
Square Burst
Square Burst
Square
Square
PWM
Square
Square
Square
Square
Square
Square
Square
P1.0
1C SigType1_Square_f1K_ph180.ino
Square
Square
P1.0
P1.0
Pin Used
MSP430 LAUNCHPAD
1B SigType1_Square_f1K_ph180.ino
1A SigType1_Square_f1K_ph180.ino
LAB #
Signal Generated